Organ



Feb. 24, 931. DAVIS 1,793,592

ORGAN Filed April 22, 1927 2 Sheets-Sheet 1 fly! 35 Illllllllllllllllll ll IT"11 i 39 Feb. 24, 1931. c DAVIS 1,793,592

\ I ORGAN Filed April 22, 1927 2 Sheets-Sheet 2 Patented Feb. 7 24, 1931 PATENT OFFICE JOHN CARLYLE DAVIS, F WYOMING, OHIO ORGAN Application filed April 22,

My invention relates to organs and has particular reference to improved stop actuating mechanism therefon.

in pipe organs as at present constructed,

* there is provided, in connection with the stops program, it is thus necessary that the artist at the proper time select the piston provided with the desired stop combination and manually operate such piston. This operation detracts his attention from the key manuals and is to such extent undesirable as it does not leave the artist in a position where he may direct his entire attention to the manuals for the proper rendition of the notes called for by the composition.

The principal object of this invention is to provide means whereby the pistons may be automatically selected Without requiring conscious thought of the artist for such selection, each change in the stop arrangement being effected by the mere operation of a switch which is arranged to effect all changes, the active selection being entirely performed by the artist prior to the rendition of the composltion or program.

Further objects of the invention will appear from the following detailed description thereof.

In the drawings:

Figure 1 is a diagrammatic view of anorgan constructed in accordance with this invention.

Figure 2 is a sectional view of one of the piston sockets.

Figure 3 is an elevation of a detail of the l and operated switch.

Figures l and are details of the foot operated switch.

Figure 6 is a diagrammatic -view of the piston mechanism.

The numeral 1 indicates a cylinder con- 1927. Serial No. 185,897.

structed of some electrically non-conductive material as, for instance, wood or hard rubber. The cylinder 1 is mounted on a shaft 2 which has bearings in brackets 3 mounted on a suitable portion of the frame of the organ. The surface of the cylinder 1 is provided with. a series of electricall conductive segments 2, 3, 4 etc. which are disposed in the surface of the cylinder in the manner clearly shown in the drawings. A clocl: spring 5 places the cylinder 1 under te -si and is arranged to rotate the cylinder when released by an escapement mechanism comprising a toothed. wheel 6 and double pawl 7'-8, the latter being pivotally mounted on the frame 4 shown. The pawl 8 is arranged ie be actuated by a solenoid 9, the. armature 10 of which is pivotally secured. to said escapement pawl. A spring 11 returns the pawl when the solenoid 9 is tie-energized. The solenoid 9 is energized by battery 12 or other source of current when the switch 13 or 130. is closed, said switch 13 being normally held in open position by means of a spring 14. Mounted on a HOD-CODQlUCtlxO bracket 15 supported on the organ frame is a conductive bar 16 on which bar a series of electrically conductive spring brushes 17 are mounted. Mounted on the non-condiu-tive bracket 15 a corresponding of electrically conductive spring brushes 18. The respective pai of brushes :n so arranged that each of the pairs i-' re arranged in come into (c-mart w re condui tive segments 2, 3, l etc. of the cylinder, as said segments are advanced by the rotation of such cylinder. The conductive bar 16 is connect-ed to a battery or other suitable source of power 19, the opposite pole of which connected by means of wires 20, 21, 22 etc, to one terminal of the respective piston op-- erative devices at present employed in pipe organ construction and not shown in the drawings herein. The opposite pole-of such piston operating mechanisms are connected by wires 23, 24, 25 etc. with the piston selectorsoclret members 26, 2'7, 28 etc, there being one of such members for each of the pistons comprised in the particular organ construction to which the present invention is a pplied.

. cent the keyboard shown in Figure e, the shoe being notc 42 to receive the movable member H3 01 the Each of said plugs is provided with a series of sockets 29.

In Figure 2 I have illustrated the selector socket in section, and it will be noted that each of the sockets 29 constitutes a terminal for a common lead 23, 24 or 25, as the case may be. The selector socket members 26, 27, 28 etc; are mounted in a uanel 30. Each of the brushes 18 is connected by means or a wire 31 to a terminal 32 in the panel 30, to which terminal is connected flexible cord 33 carrying a plug as, 3 lr, Set-B etc. adapted to be inserted in either of the sockets 29 of either of the soclzctinembers 26, 2"? or 28 etc. I

at 13 and iiih. in Figure l, are adapted to be operated by the too the performer. The switch 13 comprises a bar 35 mounted on pins 36 which telescope in openings in the frame 37 of the organ adjalhc bars normally are elevated by means of springs 39 but when depressed is arranged to close a contact with a conductor plate 40 mounted in the frame. .le switch illustrated diagrammatically at 13-A is arranged to be operated by the foot and is set preferably adjacent the shoe 4i,

cylinder at the conclusion or the performance,

or at any other time.

In Figure 6 I have illustrated the piston mechanism in diagrammatic term, it beii understood that the ordinary organ mechanism comprises a plurality of such pistons. The device consists generally i i slidably mounted at a conven point adjacent the organ in uals. he piston "l8 carries contacts 19 and 50arra ed respectively to make contact with sprini an l 52 to col plete circuits throu: and tor the o1 oration cl bellows mechanis .55 and t. pivoted rod 56 mounted on the adjustable combination piston slide 57. 'VVhen the rod is raised by the magnet 5 the hook 58 thereon is in path or" a pawl 59, which pawl is con with a bell crank 60 operated by the be -The mechanism just described comie usual organ construction as for prised in tl instance in ie well known org 1 c nstructlon known a the r -instin o and the magnets 2111-; i ted in the diagram no op c t rough th connectors 20 and 2. 3 r 21 am. 94. etc.

i l t the cevice is as connect up the desired piston operating mechanism in the desired sequence during the program. Thus, for instance, at the start of the rendition he desires to use a certain combination of: stops. He may connect these in the manner at present employed with the first piston which is connected with the socket member 26. He then inserts the plug 84 in one of the sockets :29 of socket member 26. Later in the composition he desires to use other steps which he connects in the usual manner with piston 2 of the organ which is arranged to be actuated through socket memher 27. Hethen inserts plug 3dA in. one of the sockets 29 of socket member 27. Still later in the composition he desires, for ex ample, to return to the stop combination already connected with piston l of the instrument. This he accomplishes by inserting plug 3 ll3 in another of the sockets 29 of socket member 26. For later changes in step combinations the stops and pistons are similarly arranged and subsequent plugs inserted into the related socket members and as often as it is desired to return to a stop combination connected to an earlier piston, the plug member connected with the next pair of brushes to be brought into operation by its related cylinder segment is inserted in the socket member, actuating the desired piston, it being understood that there is one socket member provided for each piston in the organ construction, and asmany segments in the cylinder l and related pairs of brushes as may be provided in the design of the instrument, reference being had to its probable requirements as to length of program and probable piston actuated stop changes durlng rendition, the limit of the instrument as to changes both to new combinations or returns to earlier piston combinations being determined by the numberot' segments and related brushes. *7

. The instrument having-been't-hu's arranged in advance of the program it is only neeessa'ry for the performer during the rendition thereofl'whenever he desires to bring into operation any piston connected stop combination to close either of the switches 13 or 13A which is a necessary mechanical movement. The closure of either of those switches energizes the solenoid 9 and opera the es- 1 .m Lou operating the next piston combination as prearranged in the manner above set forth. By reason of the double pawl escapement, the cylinder when at rest is so positioned that none of the segnxents are in'contact with the related brushes, thus eliminating the loss of current when the stop change mechanism is not in actual operation. I

It will be understood that many modifications may be made in the details of construction and the agencies employed for the operation in carrying out the present invention.-

Having thus fully described my invention, what I claim as new and desire to secure by a Letters Patent is: Y

1. In an organ, 1n combination w th the piston mechanisms, means for selectmg sald piston mechanisms during a performance in pie-arranged sequence, and a common means i for the operation of said selector means.

2. In an organ, in combination with the piston mechanisms, a non-conductlve' cylinddr rotatably mounted, electrical contacts mounted adjacent said cylinder, conductors mounted in the surface of said cylinder and der rotatably mounted, pairs of'electrical contacts mounted adjacent said cylinder, conductors mounted in the surface of said cylinder and arranged successively each to establlSh contact between one pair of said L terminals to establish the circuit ior the operation of apiston mechanism, a socket member in the lead between each of said members and the piston operating circuit, each of said members being provided with a plurality of inter-connected sockets, the other of each of said. pairs of contacts being connected to a terminal plug arranged to be inserted in either of the sockets of either of said socket members, and means for the rotation of said cylinder whereby said piston mechanisms may be operated in pro-arranged sequence.

4. In an organ, in combination with thepiston mechanisms, a non-conductive cylinder rotatably mounted, electrical contacts mounted ad acent said cylmder, conductors mounted in the surface of said cylinder and arranged successively to establish contact with said terminals so as each to establish the circuit for the operation of a piston mech- 5. In an organ, in combination with the piston mechanisms, a non-conductive cylinder rotatably mounted, pairs of electrical contacts mounted adjacent said cylinder, conductors mounted in the surface of said cylinder and arranged successively each to establish contact between one pair of said terminals to establish the circuit for the operation of a piston mechanism, a socket member in the lead between each of said members and the piston operating circuit, each of said members being provided with a plurality of inter-connected sockets, the other of each of said pairs of contacts being con nected to a terminal plug arranged to be inserted in eitherof the sockets of either of said socket members, and means for the intermittent rotation of said cylinder.

6. In an organ, in combination with, the i piston mechanisms, at non-conductive cyhnder rotatably mounted, electrical contacts mounted ad acent said cylinder, conductors mounted inthe surface of said cylinder and arranged snciossively to establish contact with said terminals so as each to establish the circuit for the operation of a piston mechanism, means whereby the piston mechanism to be actuated by each of said cylinder contacts may be selectively determined, means for the rotation of said cylinder, and an escapement whereby the rotation of said cylinder may be mternnttently controlled.

7. In an organ, in combination with the piston mechanisms, a non-conductive cylinder rotatably mounted, pairs of electrical contacts mounted adjacent said cylinder, conductors mounted in the surface of said cylinder and arranged successively each to establish contact between one pair of said terminals to establish the circuit for the oper ation of a piston mechanlsm, a socket mem her in the lead between each of said members and the piston operating circuit, each 'of' said members being provided with a plurality of inter-connected sockets, the other of each of said pairs of contacts being connected to a terminal plug arranged to be inserted in either of the sockets of either of said socket members, means for the rotation of said cylinder, and an escapement whereby the rotation of said cylinder may be intermittently controlled.

8. In an organ, in combination with the piston mechanisms, a non-conductive cylinder rotatably mounted, electrical contacts mounted adjacent said cylinder, conductors mounted in the surface of said cylinder and arranged successively to establish contact with said terminals so as each toestablish the circuit for the operation of a piston mechanism, means whereby the piston mechanism to be actuated'by each of said cyliir der contacts may be selectively determined, means for'the rotation of said cylinder, an escapem-ent comprising a toothed wheel and a 5 piston mechanisms, a non-conductive cylinder pawl whereby therotation of said cylinder may be intermittently controlled, and means for electrically operating said pawl.

9. In an organ, in combination with the rotatably mounted, pairs of electrical contacts mounted adjacent said cylinder, conductors mounted in the surface of said cylinder and arranged successively each to estab-' lish contact between one pair of said terminals to establish the circuit for the operation of a piston mechanism, a socket member in the lead between each of said members and the piston operating circuit, each of said members being provided with a splurality of inter-connected sockets, the other of each of said pairs of contactsbeing connectedzto a terminal plug arranged to be inserted in either of the sockets of either of said socket members, means for the rotation of said cylinder, an escapement comprising a toothed wheel and a pawl whereby the rotation of said cylinder may be intermittently controlled, and means for electrically operating said pawl.

10. In an organ, in combination with the piston mechanisms, a piston selector,electrical means for the control of the operation of said selector a plurality of switches variously disposed in said organ, said electrical means being operated by either of said switches.

11. In an organ, in combination'with the piston mechanisms, a non-conductive cylinderv rotatably mounted electrical contacts mounted adjacent said cylinder, conductors mounted in the surface of said cylinder and arranged successively to establish contact with said terminals so as each to establish the circuit for the operation of a piston mecha nism, means whereby the piston mechanism to be actuated by each of said cylinder contacts may be selectively determined, means for rotating said cylinder, electrical means for the intermittent control of the operation of said cylinder, said electrical means being operated by either of a plurality of switches variously disposed in said organ.

12. In an organ, in combination with the piston mechanisms, a non-conductive cylinder rotatably mounted, pairs of electrical contacts mounted adjacent said cylinder, conductors mounted in the surface of said cylinder and arranged successively each to establish contact between one pair of said terminals to establish the circuit for the operation of a piston mechanism, a socket member in the lead between each of said members and the piston operating circuit, each of said members being provided with a plurality of inter-connected sockets, the other ofv each of said pairs of contactsbeing connected to a terminal plug arranged to be inserted in either of the sockets of either of said socket members, means for rotating said cylto be actuated by each of said cylinder contacts may be selectively determined, a spring for rotating said cylinder, electrical means for the intermittent control of the operation of said cylinder, said electrical means being operated by either of a plurality of switches variously disposed in said organ.

14. In an organ, in combination with the piston mechanisms, a non-conductive cylinder rotatably mounted, pairs of electrical contacts mounted adjacent said cylinder,

conductors mounted in the surface of said cylinder and arranged successively each to establish contact between one pair of said terminals to establish the circuit for the operation of a piston mechanism, a socket mem her in the lead between each of said members and the piston operating circuit, each of said members being provided with a plurality of inter-connected sockets, the other of each of said pairs of contacts being connected to a terminal plug arranged to be inserted in either of the sockets of either of said socket members, a spring for rotating said cylinder, electrical means for the intermittent control of the operation of said cylinder, said electrical means being operated by either of a plurality of switches variously disposed in said organ. 7

15. In an organ, in combination with the piston mechanisms," a non-conductive cylinder rotatably mounted, electrical contacts mounted adjacent said cylinder, conductors mounted in the surface of said cylinder and arranged successively to establish contact with said terminals so as each to establish the circuit for the operation of a piston mechanism, means whereby the piston mechanism to be actuated by each of said cylinder contacts may be selectively determined, a spring for rotating said cylinder, electrical means for the intermittent control of the operation of said cylinder, said electrical means being operated by either of a plurality of switches variously disposed in said organ, and means for the return of said cylinder.

16. In an organ, in combination with the piston mechanisms, a non-conductive cylinder rotatably mounted, pairs of electrical contactsmountedadjacent st id cylinder, conductors -monntedin the surface of said cylinder and arranged successively each to establish contact between one pair of said terminals to establish the circuit for the operation of a piston mechanism, a socket member in the lead between each of said members and the piston operating circuit, each of said members being provided With a plurality of inter-connected sockets, the other of each of said pairs of contacts being connected to a terminal plug arranged to be inserted in w either of the sockets of either of said socket members, a spring for rotating said cylinder, electrical means for the intermittent control of the operation of said cylinder, said electrical means being operated by either of a plurality of switches variously disposed in said organ and means for the return of said cylinder.

JOHN CARLYLE DAVIS. 

